000			00379nam a2200145Ia 4500
008			211109s9999||||xx |||||||||||||| ||und||
082			_a520 _bNOR-A
100			_aNorth, Gerald
245		0	_aAdvanced Amateur Astronomy
260			_bCambridge University _aLondon _c1991
300			_a400p
630			_xPOST GRADUATE REFERENCE
650			_aAstronomy _vTelescopes
942			_cBOOK
999			_c55843 _d55843